首先，先谢谢各位的指导！斜坡(P464)加长只能稍微缓解，并无法真正排除故障；装置额定电压（P071）也加大过，没有作用！

     我感觉K版说的情况可能是真正的故障原因（因为不管升速降速还是停车，制动电阻两端都没有电压），目前手头没有外置制动单元，也无法进行尝试！这个外置制动单元是怎么使用的，因为MC上有内置的制动单元，再添加一个外置的制动单元，会不会有冲突。请K版指导一下，也算是另外一个处理方法。

     另外我这个系统是外带机械刹车的，就是说把使能去掉后，会有机械刹车把装置刹停！刹停时间在3S左右！  

     另外再请教一下，MC控制器中P605 P606 P607 P608 P609 是怎么工作的，怎么调节的?

P605

BrakeCtrl

605

Function parameter for selecting a brake control unit.

0 = Without brake

1 = Brake without check-back message

2 = Brake with check-back message

P606

BrakeOpenTime

606

Function parameter for entering the brake opening time. If

there is a brake present (P605), the setpoint release is

delayed by the set time. The brake can thus open safely

before starting of the motor.

P607

BrakeCloseTime

607

Function parameter for entering the brake closing time. If

there is a brake present (P605), blocking of the firing

pulses is additionally delayed by the set time after an OFF

command. The brake can thus safely close before the

motor is de-energised. In addition, the turn-off time set in

P0801 must be greater than the sum of the set times in

P617 and P607.

P608*

Src BrakeOpen

608

BICO parameter for selecting the binectors from which the

command for opening the brake is to be read in.

P609*

Src BrakeClose

609

BICO parameter for selecting the binectors from which the

command for closing the brake is to be read in.